The tenth escapade for haughty felines Koko and Yum Yum, who live ""400 miles north of nowhere"" with newspaper man Jim Qwilleran, and unerringly point their paw at the guilty culprit every time. This time out, they must solve the murder of their former housekeeper, Iris Cobb, who had become the resident curator at the Goodwinter Farmhouse Museum. Did the ghost of turn-of-the-century, exploitive mine-owner Ephraim Goodwinter do it (and steal a sheet from a museum exhibit and Iris' cookbook as well)? Jim's investigation turns up an obscure Goodwinter family tree, perhaps a staged murder, and buried treasure in the barn--a treasure that Vince, Iris' new neighbor and self-proclaimed old printing-press expert, seems determined to find, at all costs--even it means beating his ""wife."" Once again, the resolution has Jim interviewing old codgers for background, Koko twitching his whiskers disdainfully in the direction of an obvious clue, and so much skulduggery one would be forgiven for mistaking Moose County for a San Quentin retirement community. Sketchy plotting, with a flimsier-than-usual structure, but there's still a wealth of small-town charm. A bit tired, but Koko and Yum Yum fans will purr over it nonetheless.